( 
  (IP 
    (IP 
      (NP-PN 
        (NR 民主党))
	  
      (VP 
        (VV 需要)
	      
        (VP 
          (PP-LOC 
            (P 在)
			  
            (NP-PN 
              (NR 田纳西州)))
		  
          (VP 
            (VV 获胜)))))
      
    (PU ，)
      
    (IP 
      (NP-SBJ 
        (DNP 
          (NP 
            (PN 那里))
		       
          (DEG 的))
		  
        (NP-PN 
          (NR 比尔·福瑞斯特)))
	  
      (VP 
        (ADVP 
          (AD 将))
	      
        (VP 
          (VV 要)
		  
          (VP 
            (VV 退休)))))
      
    (PU ，)
      
    (IP 
      (NP 
        (PN 他们))
	  
      (VP 
        (IP-CND 
          (NP-SBJ 
            (-NONE- *pro*))
		      
          (VP 
            (VV 要)
			  
            (IP-OBJ 
              (NP-SBJ 
                (-NONE- *PRO*))
				  
              (VP 
                (VV 稳操胜券)))))
	      
        (ADVP 
          (AD 就))
	      
        (VP 
          (VV 需要)
		  
          (VP 
            (VP 
              (VV 击败)
			  
              (NP-OBJ 
                (DP 
                  (DT 所有))
				  
                (DNP 
                  (ADJP 
                    (ADVP 
                      (AD 最))
					     
                    (ADJP 
                      (JJ 薄弱)))
				       
                  (DEG 的))
				  
                (NP 
                  (NN 共和党人))))
		      
            (PU ，)
		      
            (VP 
              (ADVP 
                (AD 同时))
			  
              (VP 
                (VV 坚守)
			      
                (NP-OBJ 
                  (NP 
                    (NP 
                      (PN 他们)
					      
                      (PN 自己))
					  
                    (DNP 
                      (DP 
                        (DT 所有))
					       
                      (DEG 的))
					  
                    (NP 
                      (NN 席位)))
				      
                  (PU ，)
				      
                  (PRN 
                    (VP 
                      (VV 包括)
					       
                      (NP-OBJ 
                        (NP 
                          (NP-PN 
                            (NR 明尼苏达州))
							   
                          (PU ，)
							   
                          (PRN 
                            (IP 
                              (NP-LOC 
                                (PN 那里))
								    
                              (NP-SBJ 
                                (DNP 
                                  (NP 
                                    (PN 他们))
										 
                                  (DEG 的))
									    
                                (ADJP 
                                  (JJ 现任))
									    
                                (NP 
                                  (NN 人)))
								    
                              (VP 
                                (ADVP 
                                  (AD 将))
									
                                (VP 
                                  (VV 要)
									    
                                  (VP 
                                    (VV 退休)))))))
						       
                        (PU ，)
						       
                        (CC 和)
						       
                        (NP 
                          (NP-PN 
                            (NR 华盛顿州))
							   
                          (PU ，)
							   
                          (PRN 
                            (IP 
                              (NP-LOC 
                                (PN 那里))
								    
                              (NP-PN-SBJ 
                                (NR 玛丽亚·坎特威尔)
									       
                                (NP 
                                  (NN 参议员)))
								    
                              (VP 
                                (ADVP 
                                  (AD 正))
									
                                (VP 
                                  (VV 面临)
									    
                                  (AS 着)
									    
                                  (NP-OBJ 
                                    (DNP 
                                      (NP 
                                        (QP 
                                          (CD 一)
												 
                                          (CLP 
                                            (M 个)))
											     
                                        (NP 
                                          (NN 强手)))
											 
                                      (DEG 的))
										    
                                    (NP 
                                      (NN 挑战))))))))))))))))))
      
    (PU ．)))
arg0: *PRO*